Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-299 A Del Mar CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-299 0 Del Mar CA   649C ONVOY, LLC - CA 732   2016-06-11   
858-299 1 Del Mar CA   649C ONVOY, LLC - CA 732   2016-06-11   
858-299 2 Del Mar CA   649C ONVOY, LLC - CA 732   2016-07-08   
858-299 3 Del Mar CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2016-07-10   
858-299 4 Del Mar CA   318J COMCAST IP PHONE, LLC 732   2016-06-10   
858-299 5 Del Mar CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2016-07-10   
858-299 6 Del Mar CA   649C ONVOY, LLC - CA 732   2016-08-11   
858-299 7 Del Mar CA   649C ONVOY, LLC - CA 732   2016-08-11   
858-299 8 Del Mar CA   649C ONVOY, LLC - CA 732   2016-08-11   
858-299 9 Del Mar CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2016-06-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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